06-25-2011, 06:31 AM
Question 01:
A computer system has a 32-bit virtual address space with a page size of 4K and 8
bytes per page table entry.
1. How many pages can be in the virtual address space?
2. What is the maximum size of addressable physical memory in this system?
Question 02:
A small computer has four page frames. The LRU hardware can maintain a
matrix of 4 x 4 bits, initially all zero. You should use the LRU (least
Recently Used) algorithm as a page replacement policy, if the pages are
referenced with the following sequence [0, 1, 3, 3, 2, 0, 1, 2, 3, 1]. You
should give the state of the matrix step by step till all the given pages are
referenced?
A computer system has a 32-bit virtual address space with a page size of 4K and 8
bytes per page table entry.
1. How many pages can be in the virtual address space?
2. What is the maximum size of addressable physical memory in this system?
Question 02:
A small computer has four page frames. The LRU hardware can maintain a
matrix of 4 x 4 bits, initially all zero. You should use the LRU (least
Recently Used) algorithm as a page replacement policy, if the pages are
referenced with the following sequence [0, 1, 3, 3, 2, 0, 1, 2, 3, 1]. You
should give the state of the matrix step by step till all the given pages are
referenced?
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